EV general discussion

[tamzzy]

EV tyres do have different construction and compounds but you can fit any tire as long as it’s the same size, speed and load rating. YMMV and all that.

yep that's what i thought, just wondering if the efficiency and acoustics change much, if any

I don’t think Tesla fit PS4’s to their new cars anymore. My Y came with Hankook I can’t remember what the new Model 3 comes with but it’s not PS4’s.

yeah, hankook evo and michelin e.primacy iirc
mine (AUC) came with 4x new-ish PS4 acoustic so i'm in no rush to change them yet...just doing research for when the time comes

 

[b0rn2sk8]

It depends on the tyre and your own perception of noise.

Some people say it makes a difference to noise, others say it doesn’t make any difference at all. I fall down on it probably doesn’t make that much of a difference. The stock tyres are pretty performance oriented so you’ll probably not notice an efficiency drop.

What ever you put on, I’d go with something performance oriented given it’s got 300-400hp.

 

[tamzzy]

What ever you put on, I’d go with something performance oriented given it’s got 300-400hp.

yes indeed. my first instinct is to plop for the asymmetric 6 given i've used these and they're well proven (and cheaper!)
the m3 lr awd with acceleration boost is insane and it's even more mental than my old 440i
i've set the acceleration to chill rather than sport, just so it's less nausea-inducing

 

[Rroff]

Rolling resistance and the way that plays into regen, etc. both in efficiency and the feeling of the car under those circumstances may make a difference, as above posts your mileage may vary and in terms of how the car drives some people will notice differences more than others and/or how desirable that change is.

 

[Journey]

mine (AUC) came with 4x new-ish PS4 acoustic so i'm in no rush to change them yet...just doing research for when the time comes

That's gonna be a while if you aren't booting off the line everywhere, unless you are doing 20k miles PA.

 

[Journey]

@pastymuncher might want to check on Tomato looks like they are their last legs with regulators over debt.

Basingstoke-based Tomato Energy faces losing licence over debt

The company has 14,000 customers and was investigated by the regulator for debts exceeding £3m.

www.bbc.co.uk

 

[tamzzy]

That's gonna be a while if you aren't booting off the line everywhere, unless you are doing 20k miles PA.

still driving like i would my bimmer, but not using the full capabilities of the tesla i would say.
the acceleration is far too cray cray for me lol, chill mode and a slightly-heavy right foot is about right for my tastes

6k-8k pa...closer to 6k on average
but now with my cost-per-mile that is less than 10% of what it used to cost, might be opting to drive rather than take public transport

this month i travelled ~850 miles, cost me less than £14. equivalent distance on my 440i would've been near £200 in petrol costs!
(two long trips - i don't normally do these)

 

[jpaul]

tomato they were on the rails last year

In the Public Notification (EL04172): Public notification of Tomato Energy Limited (BSC Party ID: MARIGOLD, MPID: MARI)’s failure to meet multiple milestones in its Error Failure Resolution (EFR) plan following escalation to the Performance Assurance Board (PAB), Elexon noted that the BSC Panel had requested additional information about Tomato Energy’s lack of progress against its EFR milestones be made public.

maybe the diligent clients had a few moments in the sun - another one of heart throb martin lewis's picks ?

Ovo obviously p**** people off too with their revision to t&c's for charge anytime subscription ^15p/kwh

 

[Mysterae_]

anyone swapped their EV-rated tyres for "non-EV" tyres?
Also acoustic vs non-acoustic?
not a lot of information out there, and whatever there is, basically just FUD/adverts

any difference with tyre lifespan/range/acoustics?

just looking at prices, Tesla PS4 acoustic is crazy expensive, "normal" goodyear F1A6 XL is less than 2/3 of the price

I think this subject could do with it's own thread as I'm sure it's a question that'll pop up more often than not. A few articles I've read say that tyres "designed for EVs" is just marketing BS as all tyres are designed the best they can be for grip, rolling resistance and noise already.

I've thought about it too in anticipation for when I need to replace the tyres on my BYD Seal which has Continental EcoContact 6 Q 235/45 R19 as stock. From what I've read the Seal is quite particular when it comes to tyres and tyre noise. I wouldn't want it to get any noisier than these Conti's!

If by the time I need new tyres hopefully the the Michelin CrossClimate 3 and or CrossClimate 3 Sport are available in the size I need, then I'll consider these.

 

[lordrobs]

@pastymuncher might want to check on Tomato looks like they are their last legs with regulators over debt.

Basingstoke-based Tomato Energy faces losing licence over debt

The company has 14,000 customers and was investigated by the regulator for debts exceeding £3m.

www.bbc.co.uk

Yeah I've decided to get out while I can.

Was a decent run and noticeably cheaper over the last 8 months but it's clear they haven't got the funds or investors. Plus their solar offering never seemed to get off the ground which was one of their USPs.

 

[DarkBahamut]

A few articles I've read say that tyres "designed for EVs" is just marketing BS as all tyres are designed the best they can be for grip, rolling resistance and noise already.

Those articles are wrong. Tyre design is a compromise. Grip and rolling resistance are in direct competition with each other, so you'll generally have to trade one to get the other. This is why UHP tyres are usually not A rated for rolling resistance. The EV ones which are play some tricks to get there, like starting with lower tread depth which improves rolling resistance, but that shortens tyre life (because you start with less tyre!). Sometimes the compound is also changed to further improve rolling resistance, so the car marker can get higher official range when selling the car.

For some real numbers, in the ADAC tests early in the year, the best EV specific tyre got 20% more range than an EV ready, but not EV specific tyre that was also in the test. That's far beyond anything I'd call marketing BS personally! Ultimately, the best tyre for anyone is going depend just what compromise they want to make, but anything with a higher rolling resistance rating will come with a bit less range, and tyres without foam generally have a little more droning at city speeds (high speeds are dominated by tread noise, so the foam doesn't do so much there)

 

[chanjy]

Those articles are wrong. Tyre design is a compromise. Grip and rolling resistance are in direct competition with each other, so you'll generally have to trade one to get the other. This is why UHP tyres are usually not A rated for rolling resistance. The EV ones which are play some tricks to get there, like starting with lower tread depth which improves rolling resistance, but that shortens tyre life (because you start with less tyre!). Sometimes the compound is also changed to further improve rolling resistance, so the car marker can get higher official range when selling the car.

For some real numbers, in the ADAC tests early in the year, the best EV specific tyre got 20% more range than an EV ready, but not EV specific tyre that was also in the test. That's far beyond anything I'd call marketing BS personally! Ultimately, the best tyre for anyone is going depend just what compromise they want to make, but anything with a higher rolling resistance rating will come with a bit less range, and tyres without foam generally have a little more droning at city speeds (high speeds are dominated by tread noise, so the foam doesn't do so much there)

I'd like to see what that 20% means, there's no way a car would get 20% more real world range from a tyre swap

 

[pastymuncher]

@pastymuncher might want to check on Tomato looks like they are their last legs with regulators over debt.

Basingstoke-based Tomato Energy faces losing licence over debt

The company has 14,000 customers and was investigated by the regulator for debts exceeding £3m.

www.bbc.co.uk

Many thanks for the heads up. Maybe if they actually bill their customers and take monthly direct debits they wouldn't be in this mess!! I haven't had a bill since July when they hit me for the previous three months direct debits all at once. Now it looks like they are going to do it again. How difficult can it be to set up a monthly direct debit? I suppose it was good while it lasted but where to go now? It's going to be a big increase for me due to Tomato's three rate system because we even made good use of the cheaper mid morning and late night slots as well as the 5p overnight rate and they all applied to the whole house and not just the car. We have some of the most expensive energy and SC rates in the UK despite having all the wind farms forced on us (three huge ones within 15 miles of us and more in the pipeline) promising cheaper electricity, yeah right.

This couldn't have come at a worse time because of the price increase. Comparison sites are a waste of time as they don't include EV tariffs and going to some of the energy suppliers is hit or miss as well because some say you need to go on their standard variable tariff then switch to their EV tariff but don't give any unit rates. How the hell is anybody supposed to make a informed decision?

 

[DarkBahamut]

I'd like to see what that 20% means, there's no way a car would get 20% more real world range from a tyre swap

https://www.tyrereviews.com/Tyre-Tests/2025-EV-Tyre-Test.htm

Autobild supplied some range data which showed about ~19% difference between the best and worst. They also did a second test in a wider tyre size which had about 14% difference between the best and worst. Most people probably aren't swapping between the best and worst so the difference that most people see will be somewhat less, but even a 5-10% difference is probably noticable.

 

[bainbridge]

I guess the speed ratings on many EV tyres can be lower as many EVs have a speed limiter, 110mph or whatever.

 

[tamzzy]

Yeah my searching last night also pointed towards the hankook ion Evo.
The only thing I can't say for certain is how different the grip and handling is, when compared to the PS4 acoustic. I've seen one that compared with a vanilla ps5, but how translatable that is to the T0 PS4 acoustic, I don't know.

 

[Simon]

My born has more road noise on 235 Bridgestone sports. Than the old one on 215 contiecoseal.

 

[Simon]

I don't particularly care to be honest! I know the point you're making and I know Edd is planning to write it off from a tax perspective. In isolation who in the mother of god is going to pay 22K of their own money to hire a car for 3 years ?

I am still working so can't check - surely buying a similar car 1 or 2 years old is where the smart money goes, or am I missing something?

Well yes. But if you buy and car and sell after 3yrs and you lose 22k then it’s the same. If the 22k to rent a SS car, then that includes everything so is often cheaper way to own a new car for 3yrs.

This paying to rent narrative isn’t the full picture

 

[Jimbeam3678]

Well yes. But if you buy and car and sell after 3yrs and you lose 22k then it’s the same. If the 22k to rent a SS car, then that includes everything so is often cheaper way to own a new car for 3yrs.

This paying to rent narrative isn’t the full picture

What happened to buying a car and keeping it The financing models encourage buy/rent/hire and refresh in X years. Its madness, assuming its not a work funded car as you mentioned.

 

[lordrobs]

Many thanks for the heads up. Maybe if they actually bill their customers and take monthly direct debits they wouldn't be in this mess!! I haven't had a bill since July when they hit me for the previous three months direct debits all at once. Now it looks like they are going to do it again. How difficult can it be to set up a monthly direct debit? I suppose it was good while it lasted but where to go now? It's going to be a big increase for me due to Tomato's three rate system because we even made good use of the cheaper mid morning and late night slots as well as the 5p overnight rate and they all applied to the whole house and not just the car. We have some of the most expensive energy and SC rates in the UK despite having all the wind farms forced on us (three huge ones within 15 miles of us and more in the pipeline) promising cheaper electricity, yeah right.

This couldn't have come at a worse time because of the price increase. Comparison sites are a waste of time as they don't include EV tariffs and going to some of the energy suppliers is hit or miss as well because some say you need to go on their standard variable tariff then switch to their EV tariff but don't give any unit rates. How the hell is anybody supposed to make a informed decision?

For me it is a real shame. Best customer service I've had from any supplier (better than Octopus who people put on a pedestal) and right from the start everything was seamless. Even their energy usage stats via my watts were far more reliable than I had with Octopus.

I'm a bit stuck, I was going to jump back on to Octopus Go (not intelligent as I only 3 pin to a PHEV) but I kept my gas with them (Octopus tracker) and now seems to fall between the cracks of not being a "new" customer so I can't do a regular switch but also I'm not a current leccy customer so I can't simply sign up to a new tariff.

Got a day in the office tomorrow so I'll get in touch with them and see if they can manually sort it for me.